Which act covers marriage fraud or concealment of facts?

The correct choice relates to the provisions regarding marriage fraud and concealment of facts in the context of immigration law. The relevant statute is indeed found under 8 USC 1325, which addresses the unlawful entry of individuals into the United States, and includes factors concerning fraud in the immigration process, such as marriage fraud.

Marriage fraud typically involves entering into a marriage for the sole purpose of obtaining immigration benefits, which can lead to serious legal consequences. This provision covers situations where an individual may attempt to mislead officials about their immigration status or the legitimacy of their marriage, highlighting the seriousness with which the law treats immigration-related fraud.

Other statutes listed focus on different aspects of immigration offenses. For example, 8 USC 1324a deals with the hiring, recruiting, or referring for a fee of unauthorized aliens. Meanwhile, 8 USC 1326 addresses the reentry of deported aliens, making it an important provision but unrelated to marriage fraud. Lastly, 8 USC 1328 specifically pertains to various other immigration violations, but not directly to the issues of marriage fraud or concealment of facts. Therefore, the link of 8 USC 1325 to fraudulent actions in the immigration context makes it the correct reference for this scenario.